[Bug c/88544] New: ICE on ARM Cortex A7

[ynezz at true dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88544

            Bug ID: 88544
           Summary: ICE on ARM Cortex A7
           Product: gcc
           Version: 7.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ynezz at true dot cz
  Target Milestone: ---

Hi,

while build testing new 4.19.9 kernel in OpenWrt for arm_cortex-a7+neon-vfpv4
target, I've hit following ICE:

In file included from ./include/linux/kernel.h:207:0,
                 from ./include/linux/list.h:9,
                 from ./include/linux/preempt.h:11,
                 from ./include/linux/hardirq.h:5,
                 from ./include/net/sock.h:43,
                 from net/l2tp/l2tp_netlink.c:19:
./arch/arm/include/asm/div64.h:1:0: internal compiler error: Illegal
instruction
 /* SPDX-License-Identifier: GPL-2.0 */

  CC [M]  drivers/usb/storage/datafab.o
  CC [M]  drivers/usb/serial/keyspan.o
0x9e090f crash_signal
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/toplev.c:337
0x103a203 munge
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/mkdeps.c:61
0x103a4c5 deps_add_dep(deps*, char const*)
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/mkdeps.c:258
0x102ce0f _cpp_stack_file
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/files.c:912
0x102d06c _cpp_stack_include
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/files.c:1049
0x102449a do_include_common
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/directives.c:858
0x1024fcf _cpp_handle_directive
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/directives.c:547
0x1032f2c _cpp_lex_token
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/lex.c:2566
0x1038ecf cpp_get_token_1
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/libcpp/macro.c:2523
0x618c8e c_lex_with_flags(tree_node**, unsigned int*, unsigned char*, int)
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c-family/c-lex.c:398
0x5b5410 c_lex_one_token
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c/c-parser.c:251 
0x5d95c2 c_parser_peek_token
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c/c-parser.c:435
0x5d95c2 c_parser_next_token_is
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c/c-parser.h:161
0x5d95c2 c_parser_next_token_is_not
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c/c-parser.h:170
0x5d95c2 c_parser_translation_unit
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c/c-parser.c:1346
0x5d95c2 c_parse_file()
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c/c-parser.c:18183
0x61e992 c_common_parse_file()
       
/home/petr/testing/openwrt/build_dir/toolchain-arm_cortex-a7+neon-vfpv4_gcc-7.4.0_musl_eabi/gcc-7.4.0/gcc/c-family/c-opts.c:1161
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://www.lede-project.org/bugs/> for instructions.
  CC [M]  fs/xfs/xfs_buf.o
  CC [M]  drivers/usb/host/xhci-pci.o
scripts/Makefile.build:309: recipe for target 'net/l2tp/l2tp_netlink.o' failed
make[7]: *** [net/l2tp/l2tp_netlink.o] Error 1
scripts/Makefile.build:544: recipe for target 'net/l2tp' failed
make[6]: *** [net/l2tp] Error 2
Makefile:1052: recipe for target 'net' failed
make[5]: *** [net] Error 2
make[5]: *** Waiting for unfinished jobs....

It happens from time to time, I'm not able to reproduce it reliably, sorry.